Home / 74,120.24-111,197.56-21,530.64

Finding the Fourth Proportional to 74,120.24, 111,197.56 and 21,530.64

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Solution

The fourth proportional to 74,120.24, 111,197.56 and 21,530.64 is: 32,300.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,120.24 : 111,197.56 = 21,530.64 : x
  2. Step 2: Convert to fraction form
    74,120.24/111,197.56 = 21,530.64/x
  3. Step 3: Cross multiply
    74,120.24x = 111,197.56 × 21,530.64
  4. Step 4: Simplify right side
    74,120.24x = 2,394,154,633.24
  5. Step 5: Solve for x
    x = 2,394,154,633.24/74,120.24
  6. Step 6: Final answer
    x = 32,300.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.